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algal bloom
algal bloom The rapid increase in populations of algae and other phytoplankton, in particular cyanobacteria, that occurs in inland water systems, such as lakes. The density of the organisms may be such that it may prevent light from passing to lower depths in the water system. Algal blooms are caused by an increase in levels of nitrate, a mineral ion essential for algal and bacterial growth. The source of increased nitrate may be from agricultural fertilizers, which are leached into water systems from the land, or sewage effluent. Algal blooms contribute to the eutrophication of water systems. See also eutrophic. Compare red tide.
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"algal bloom." A Dictionary of Biology. 2004. Encyclopedia.com. 27 May. 2012 <http://www.encyclopedia.com>. "algal bloom." A Dictionary of Biology. 2004. Encyclopedia.com. (May 27, 2012). http://www.encyclopedia.com/doc/1O6-algalbloom.html "algal bloom." A Dictionary of Biology. 2004. Retrieved May 27, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O6-algalbloom.html |
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algal bloom
algal bloom A sudden growth of algae in an aquatic ecosystem. It can occur naturally in spring or early summer when primary production exceeds consumption by aquatic herbivores (see primary productivity). Algal blooms may also be induced by nutrient enrichment of waters due to pollution. They are a characteristic symptom of eutrophication.
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MICHAEL ALLABY. "algal bloom." A Dictionary of Ecology. 2004. Encyclopedia.com. 27 May. 2012 <http://www.encyclopedia.com>. MICHAEL ALLABY. "algal bloom." A Dictionary of Ecology. 2004. Encyclopedia.com. (May 27, 2012). http://www.encyclopedia.com/doc/1O14-algalbloom.html MICHAEL ALLABY. "algal bloom." A Dictionary of Ecology. 2004. Retrieved May 27, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O14-algalbloom.html |
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algal bloom
algal bloom A sudden growth of algae in an aquatic ecosystem. This can occur naturally in spring or early summer when primary production exceeds consumption by aquatic herbivores. Algal blooms may also be induced by nutrient enrichment of waters due to pollution. They are a characteristic symptom of eutrophication.
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Cite this article
MICHAEL ALLABY. "algal bloom." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. 27 May. 2012 <http://www.encyclopedia.com>. MICHAEL ALLABY. "algal bloom." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. (May 27, 2012). http://www.encyclopedia.com/doc/1O7-algalbloom.html MICHAEL ALLABY. "algal bloom." A Dictionary of Plant Sciences. 1998. Retrieved May 27, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O7-algalbloom.html |
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algal bloom
algal bloom Sudden growth of algae in an aquatic ecosystem. It can occur naturally in spring or early summer when primary production exceeds consumption by aquatic herbivores (see PRIMARY PRODUCTIVITY). Algal blooms may also be induced by nutrient enrichment of waters due to pollution.
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Cite this article
AILSA ALLABY and MICHAEL ALLABY. "algal bloom." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 27 May. 2012 <http://www.encyclopedia.com>. AILSA ALLABY and MICHAEL ALLABY. "algal bloom." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (May 27, 2012). http://www.encyclopedia.com/doc/1O13-algalbloom.html AILSA ALLABY and MICHAEL ALLABY. "algal bloom." A Dictionary of Earth Sciences. 1999. Retrieved May 27, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-algalbloom.html |
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